Tamron 70-210 mm f/4 Di VC USD
8. Vignetting
| Nikon D500, 70 mm, f/4.0 | Nikon D500, 70 mm, f/5.6 |
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| Nikon D500, 135 mm, f/4.0 | Nikon D500, 135 mm, f/5.6 |
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| Nikon D500, 210 mm, f/4.0 | Nikon D500, 210 mm, f/5.6 |
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There is practically no vignetting on that detector. At 70 mm and with the lens fully open the brightness loss in the corners reaches a symbolic value of 6% (−0.19 EV). After increasing the focal length to 135 mm it even decreases to 5% (−0.16 EV). The highest result, but still practically imperceptible, we saw at 210 mm where, by f/4.0 and f/5.6, we got respectively 13% (−0.40 EV) and 3% (−0.09 EV).
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Will the performance be equally good on full frame? Let’s try to assess it by glancing at thumbnails taken from photos shot with the Nikon D3x.
| Nikon D3x, 70 mm, f/4.0 | Nikon D3x, 70 mm, f/5.6 |
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| Nikon D3x, 135 mm, f/4.0 | Nikon D3x, 135 mm, f/5.6 |
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| Nikon D3x, 210 mm, f/4.0 | Nikon D3x, 210 mm, f/5.6 |
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The results are higher for obvious reasons but still the tested lens should be praised. At 70 mm and by f/4.0 the vignetting reaches 24% (−0.78 EV); then, on stopping down the aperture to f/5.6, it decreases to 11% (−0.34 EV).
At 135 mm focal length the situation is a bit better. At the maximum relative aperture we got 20% (−0.66 EV), and by f/5.6 our result was 9% (−0.26 EV).
At the maximum focal length you basically return to the 70 mm performance. By f/4.0 the vignetting is 24% (−0.78 EV) and it decreases to 10% (−0.30 EV) on stopping down the aperture to f/5.6.
The Tokina performed similarly well in this category and both lenses from independent producers fared better than the Nikkor.
| Nikon D3x, 70 mm, f/4.0 |
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| Nikon D3x, 135 mm, f/4.0 |
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| Nikon D3x, 210 mm, f/4.0 |
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